| Year | Location | 1st | 2nd | 3rd | 4th | Host | Organizer | Comment |
| 2006 | Dallas, TX | UMBC | UTD | Miami Dade | Duke | UTD | ||
| 2005 | Lindsburg, KA | UMBC | UTD | Miami Dade | Stanford | Karpov School | Korenman | |
| 2004 | Lindsborg, KA | UMBC | UTD | Miami Dade | MIT | Karpov School | Korenman | |
| 2003 | Miami, FL | UMBC | UTD | Miami Dade | Chicago | Hall of Fame | ||
| 2002 | Miami, FL | UTD | UMBC | Stanford | Harvard | Hall of Fame | ||
| 2001 | Dallas, TX | UTD | UMBC | Berkeley | Stanford | UTD | Redman |